GNU bug report logs - #745
pop-to-buffer, frames, and input focus

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From: help-debbugs <at> gnu.org (Emacs bug Tracking System)
To: Helmut Eller <eller.helmut <at> gmail.com>
Subject: bug#745 closed by martin rudalics <rudalics <at> gmx.at> (Re: bug#745:
 pop-to-buffer, frames, and input focus)

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This is an automatic notification regarding your bug report
which was filed against the emacs package:

#745: pop-to-buffer, frames, and input focus

It has been closed by martin rudalics <rudalics <at> gmx.at>.

Their explanation is attached below along with your original report.
If this explanation is unsatisfactory and you have not received a
better one in a separate message then please contact martin rudalics <rudalics <at> gmx.at> by
replying to this email.


-- 
745: http://debbugs.gnu.org/cgi/bugreport.cgi?bug=745
Emacs Bug Tracking System
Contact help-debbugs <at> gnu.org with problems

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From: martin rudalics <rudalics <at> gmx.at>
To: 745-done <at> debbugs.gnu.org
Cc: Helmut Eller <eller.helmut <at> gmail.com>
Subject: Re: bug#745: pop-to-buffer, frames, and input focus
Date: Thu, 11 Sep 2008 08:52:54 +0200

Fixed as

2008-09-11  Martin Rudalics  <rudalics <at> gmx.at>

	* window.el (pop-to-buffer): If the window for buffer-or-name is
	not on the selected frame, raise that window's frame and give it
	input focus.  (Bug#745)

[Message part 3 (message/rfc822, inline)]

From: Helmut Eller <eller.helmut <at> gmail.com>
To: bug-gnu-emacs <at> gnu.org
Subject: pop-to-buffer, frames, and input focus
Date: Wed, 20 Aug 2008 09:35:31 +0200

Hi,

The behavior of pop-to-buffer in combination with multiple frames is
rather unpredictable or at least not what I expected.

For example:

  shell$ cat pop-to-buffer-test.el
  
  (let ((frame (selected-frame))
        (pop-up-frames t))
    (display-buffer (get-buffer-create "foo"))
    (select-frame-set-input-focus frame))
  
  (let ((display-buffer-reuse-frames t))
    (pop-to-buffer "foo"))
  
  shell$ emacs -Q -l pop-to-buffer-test.el

Pops up two frames, one frame displays the "foo" buffer and the other
the "*scratch*" buffer (so far so good).  But the "foo" frame has not
the input focus.  Isn't pop-to-buffer supposed to switch input focus
too?

Also note that I had to save and restore the selected frame
around display-buffer.  If I try

  emacs -Q --eval '(let ((pop-up-frames t)) 
                     (display-buffer (get-buffer-create "foo")))' 

the "foo" buffer is selected, even though display-buffer should not
switch the selected window.

Not even save-window-excursion stops display-buffer from switching the
frame:

  emacs -Q --eval '(save-window-excursion 
                     (let ((pop-up-frames t)) 
                        (display-buffer (get-buffer-create "foo"))))'


This is with:
 GNU Emacs 23.0.60.4 (i686-pc-linux-gnu, GTK+ Version 2.8.20)
 of 2008-08-15 on xaital
Windowing system distributor `The X.Org Foundation', version 11.0.70101000
configured using `configure  '--without-sound' '--without-pop' '--without-gif' '--without-tiff''

My window manager is Sawfish 1.3.

Helmut.

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